最近遇到两个问题

brew升级的问题 

重新安装不影响使用

1 卸载旧的brew

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"

2 安装新的brew

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

本地mysql8访问的问题

mysql - uroot - p

USE mysql;

ALTER USER root@localhost IDENTIFIED WITH mysql_native_password BY '12345678';